/*
 * ------------------------------------------------------------------------
 *  Copyright by KNIME AG, Zurich, Switzerland
 *  Website: http://www.knime.com; Email: contact@knime.com
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License, Version 3, as
 *  published by the Free Software Foundation.
 *
 *  This program is distributed in the hope that it will be useful, but
 *  WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, see <http://www.gnu.org/licenses>.
 *
 *  Additional permission under GNU GPL version 3 section 7:
 *
 *  KNIME interoperates with ECLIPSE solely via ECLIPSE's plug-in APIs.
 *  Hence, KNIME and ECLIPSE are both independent programs and are not
 *  derived from each other. Should, however, the interpretation of the
 *  GNU GPL Version 3 ("License") under any applicable laws result in
 *  KNIME and ECLIPSE being a combined program, KNIME AG herewith grants
 *  you the additional permission to use and propagate KNIME together with
 *  ECLIPSE with only the license terms in place for ECLIPSE applying to
 *  ECLIPSE and the GNU GPL Version 3 applying for KNIME, provided the
 *  license terms of ECLIPSE themselves allow for the respective use and
 *  propagation of ECLIPSE together with KNIME.
 *
 *  Additional permission relating to nodes for KNIME that extend the Node
 *  Extension (and in particular that are based on subclasses of NodeModel,
 *  NodeDialog, and NodeView) and that only interoperate with KNIME through
 *  standard APIs ("Nodes"):
 *  Nodes are deemed to be separate and independent programs and to not be
 *  covered works.  Notwithstanding anything to the contrary in the
 *  License, the License does not apply to Nodes, you are not required to
 *  license Nodes under the License, and you are granted a license to
 *  prepare and propagate Nodes, in each case even if such Nodes are
 *  propagated with or for interoperation with KNIME.  The owner of a Node
 *  may freely choose the license terms applicable to such Node, including
 *  when such Node is propagated with or for interoperation with KNIME.
 * ------------------------------------------------------------------------
 */
package org.knime.base.node.preproc.valcount;

import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;

import javax.swing.JCheckBox;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.border.Border;

import org.knime.core.data.DataTableSpec;
import org.knime.core.data.DataValue;
import org.knime.core.node.InvalidSettingsException;
import org.knime.core.node.NodeDialogPane;
import org.knime.core.node.NodeSettingsRO;
import org.knime.core.node.NodeSettingsWO;
import org.knime.core.node.NotConfigurableException;
import org.knime.core.node.util.ColumnSelectionComboxBox;

/**
 * This class is the dialog for the value counter dialog that lets the user
 * selected an arbitrary column.
 * 
 * @author Thorsten Meinl, University of Konstanz
 */
public class ValueCounterNodeDialog extends NodeDialogPane {
    private final ColumnSelectionComboxBox m_columnName =
            new ColumnSelectionComboxBox((Border)null, DataValue.class);
    private final JCheckBox m_hiliting = new JCheckBox();
    
    private final ValueCounterSettings m_settings = new ValueCounterSettings();
    
    /**
     * Creates a new dialog for the value counter node.
     */
    public ValueCounterNodeDialog() {
        JPanel p = new JPanel(new GridBagLayout());
        GridBagConstraints c = new GridBagConstraints();
        
        c.anchor = GridBagConstraints.NORTHWEST;
        c.gridx = 0;
        c.gridy = 0;
        p.add(new JLabel("Column with values to count "), c);
        c.gridx++;
        p.add(m_columnName, c);
        
        c.gridx = 0;
        c.gridy = 1;
        p.add(new JLabel("Enable hiliting  "), c);
        c.gridx++;
        p.add(m_hiliting, c);
        addTab("Standard settings", p);
    }
    
    /**
     * {@inheritDoc}
     */
    @Override
    protected void loadSettingsFrom(final NodeSettingsRO settings,
            final DataTableSpec[] specs) throws NotConfigurableException {
        try {
            m_settings.loadSettings(settings);
        } catch (InvalidSettingsException ex) {
            // ignore it and use defaults
        }
        m_columnName.update(specs[0], m_settings.columnName());
        m_hiliting.setSelected(m_settings.hiliting());
    }

    /**
     * {@inheritDoc}
     */
    @Override
    protected void saveSettingsTo(final NodeSettingsWO settings)
            throws InvalidSettingsException {
        m_settings.columnName(m_columnName.getSelectedColumn());
        m_settings.hiliting(m_hiliting.isSelected());
        m_settings.saveSettings(settings);
    }
}
